How to upgrade an existing UpdraftPlus Clone to php 7

Hallo together,

when i created a clone in Updraft i forgot to take the right php version.
So i did an clone with my old php version 5 but i want to test the new php version 7 with the clone. This was my intention to build the clone.

The Question is, where is the button to upgrade this clone to php 7?
second. When i start my the “normal” Elementor of my page an i go to the settings of UpdraftPlus i can find my backup link but not the link to the Clone. When i go to the UpdraftPlus stage i found the link which shows the Homepage but there is not the link to go to the Elementory of this Clone. Where can i find this link in an easy way?

Thanks in front for helping me.
Kind regards

The page I need help with: [log in to see the link]